Where does Perfect Vision Technology (HK) Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Perfect Vision Technology (HK) Ltd. ranks #29,761 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does Perfect Vision Technology (HK) Ltd. hold?

Perfect Vision Technology (HK) Ltd. holds 9 US utility patents granted between 2016 and 2024, spanning 6 technology areas.

What is Perfect Vision Technology (HK) Ltd.'s Innovation Score?

Perfect Vision Technology (HK) Ltd. has an Innovation Score of 30.6 out of 100 (35th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Perfect Vision Technology (HK) Ltd. focus on?

Perfect Vision Technology (HK) Ltd.'s top technology area is A61B (DIAGNOSIS; SURGERY; Identification) with 9 patents, ranking #1,889 of 7,127 assignees active in that subclass. Grants appear in 6 CPC subclasses total.

Is Perfect Vision Technology (HK) Ltd.'s patent grant rate increasing or decreasing?

Perfect Vision Technology (HK) Ltd.'s recent grant velocity is -50% compared to the prior five-year period (grant years, not application filing dates). Grant activity has slowed relative to earlier years.

What does claim depth mean for Perfect Vision Technology (HK) Ltd.'s patents?

Perfect Vision Technology (HK) Ltd.'s patents average 17.7 claims each. This is an aggregate descriptive count from the grant record; it does not establish claim scope, legal strength, enforceability, or design-around risk.

How is the Perfect Vision Technology (HK) Ltd. patent data sourced?

All patent data comes from USPTO PatentsView, a public research dataset maintained by the United States Patent and Trademark Office covering US granted utility patents from 2015 to 2025.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Perfect Vision Technology (HK) Ltd.

USPTO PatentsView assignee record - 9 granted patents across 6 technology areas, recorded in grant years 2016–2024. Grant-trend analysis is cross-referenced to USPTO Patent Public Search; it does not measure application filings, current R&D, or legal strength. Primary class: A61B (DIAGNOSIS; SURGERY; Identification).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Perfect ranks #29,761 of 49,997 tracked US assignees by granted-patent volume, with 9 patents across 6 technology areas.

#29,761
of 49,997 US assignees by volume: 35th percentile
by Innovation Score (30.6/100): 17.7
avg claims per patent: -50%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R29761 · Foreign Corporation #29,761 · 9 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-RICH · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 9 grants
MID-PACK #29,761/49,997
PHOTO-FINISH Payless Shoesource…
CPC-NARROW A61B · 6 areas
INNOV-THIN 30.6/100
CLAIMS-RICH 17.7 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -50% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Payless Shoesource Worldwide, Inc. (±0 grants)

Instrument codes from this assignee’s USPTO PatentsView grant sheet: volume band, corpus rank, photo-finish peer, lead CPC, Innovation Score, claim depth, assignee type, velocity, and book completeness. Not a USPTO rating of patent strength.

How Perfect’s 30.6 Innovation Score adds up

The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.

Volume 8.0 pts (26%) Velocity 3.3 pts (11%) Breadth 8.7 pts (28%) Claim depth 10.6 pts (35%)

Qualcomm Incorporated · highest

85
Perfect Vision… · this assignee

31
3D Lighting… · lowest

7

What this shows Perfect's Innovation Score is 30.6/100 (35th percentile of the PatentsView-derived corpus). The chart places that score against the nearest Innovation Score peers plus corpus poles, not a reprint of the volume ranking.

Does more volume mean deeper claims for Perfect?

Each dot is one of Perfect’s 8 nearest volume peers (same corpus rank neighbourhood as the chart above), placed by total granted patents (horizontal) against average claims per patent (vertical). Perfect’s own 17.7 claims/patent is ABOVE the 6.3 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

Perfect vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

Where Perfect's grants concentrate

Perfect Vision Technology (HK) Ltd. is a focused PatentsView assignee: 6 CPC subclasses with 100% of grants classified under A61B (DIAGNOSIS; SURGERY; Identification). Peak complete grant year is 2016 (2 grants) versus a trough of 1 in 2024. By volume, Perfect sits between Payless Shoesource Worldwide, Inc. and Phaanix PTY Ltd.

Perfect's three-year grant acceleration

Perfect Vision Technology (HK) Ltd. shows 1 grants in 2022–2024 against only 2 in 2019–2021. That prior window is too thin for a growth multiple (rename and spin-out assignees look artificially high when the baseline is near zero), so PlainPatent withholds a ranked acceleration claim here.

Payless Shoesourc…

9
PCO Group

9
Pellini S p A

9
PEM Management

9
Permobil

9
Petit Elin

9
PGA Tour Enterpri…

9
Phaanix PTY

9
Perfect Vision Te… ◀

9

What this shows Perfect holds 9 patents at rank #29,718, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Perfect

By rank, the assignees closest to #29,718 in granted patent volume.

Leaders in A61B (Diagnosis)

Other assignees with the most granted patents in Perfect's primary technology class.

Perfect's Innovation Score vs. every tracked assignee

Composite of portfolio volume, grant velocity, technology breadth, and claim depth (0–100)

31 35th percentile higher than 35% of 49,997 US assignees

Each bar is a band; taller bars hold more US assignees. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source USPTO PatentsView, PlainPatent Innovation Score · 2015–2025

USPTO utility patent grants by year · 2016–2024

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

Perfect Vision Technology (HK) Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	2	22.2%
2017	2	22.2%
2018	2	22.2%
2021	2	22.2%
2024	1	11.1%

Which technologies does Perfect Vision Technology (HK) Ltd. patent most?

A61B - DIAGNOSIS; SURGERY; Identification 9

G02C - SPECTACLES; Sunglasses OR Goggles Insofar AS They Have THE Same Features AS SPECTACLES; Contact Lenses 8

G01M - Testing Static OR Dynamic Balance OF Machines OR STRUCTURES; Testing OF Structures OR Apparatus, NOT Otherwise Provided FOR 2

G16H - Healthcare Informatics, i.e. Information AND Communication Technology [ICT] Specially Adapted FOR THE Handling OR Processing OF Medical OR Healthcare Data 2

H04N - Pictorial Communication, e.g. Television 1

G06T - Image Data Processing OR Generation, IN General 1

Top 6 of 6 technology areas

More on this record

Data Source

USPTO PatentsView, US granted patents 2015–2025

View all rankings → How is Innovation Score calculated?

What to do with this data

Perfect Vision Technology (HK) Ltd.'s patent record in context - here's where to go next.

Perfect Vision Technology (HK) Ltd.'s lead technology class is A61B (DIAGNOSIS; SURGERY; Identification), 100% of its portfolio - see every assignee active in that class. Explore A61B
Ranked #29,761 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Perfect Vision Technology (HK) Ltd. against Payless Shoesource Worldwide, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 30.6/100 blends volume, velocity, technology breadth, and claim depth. How it's calculated

Figures reflect USPTO PatentsView grant data through May 2026; pending applications not yet granted are not counted.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the USPTO PatentsView database. Consult a qualified professional before making decisions based on this data.

Read our methodology - how this data is sourced, computed, and verified.

Data sources used on this page

USPTO PatentsView - the disambiguated bulk patent-grant, assignee, and CPC data this page's figures are derived from. patentsview.org
Cooperative Patent Classification (CPC) - the joint USPTO/EPO classification scheme used to group patents by technology area. cooperativepatentclassification.org
USPTO Patent Public Search - the official interface to verify the status of any individual patent. ppubs.uspto.gov

Compiled by PlainPatent , US Patent Intelligence Editorial Process · May 15, 2026

Every figure on PlainPatent is rendered directly from USPTO source data, no number is typed in by an editor. This page draws directly on USPTO source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.